采用电弧等离子体辅助渗氮处理了304不锈钢,考察了温度在480℃、处理1h时氩气含量(0～60％)对处理后渗层组织结构及硬度的影响.采用X射线衍射(XRD)分析渗氮层的相组成,采用扫描电子显微镜(SEM)及光学显微镜分别观察渗氮样品表面形貌及横截面形貌,利用X射线光电子谱(XPS)及显微硬度计测试渗氮层的氮含量及横截面硬度分布.结果表明:氮化处理后在不同氩气含量时得到的渗氮层厚度在45～ 55 μm范围内,表层氮含量随着氩气含量增加略有降低,从XRD图谱中发现均有铁氮化物及氮化铬相析出,这些氮化物的析出促进了渗层显微硬度的提高,表层硬度最高达到了1300 HV0.05.
参考文献
| [1] | S. Piard;J. B. Memet;R. Sabot;J. L. Grosseau-poussard J. P. Riviere;R. Meilland .Corrosion behaviour, microhardness and surface characterisation of low energy, High current ion implanted austenitic stainless steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):163-172. |
| [2] | Sakar A;Leroy th;Michel H et al.Properties of sputtered stainless steel-nitrogen coatings and structural analogy with low temperature plasma nitrided layers of austenitic steels[J].Materials Science and Engineering A,1991,140:702-708. |
| [3] | Mandl S;Fritzsche B;Manova D;Hirsch D;Neumann H;Richter E;Rauschenbach B .Wear reduction in AISI 630 martensitic stainless steel after energetic nitrogen ion implantation[J].Surface & Coatings Technology,2005(2/3):258-263. |
| [4] | Sun Y;Bell T .Plasma surface engineering of low alloy steel[J].Materials Science and Engineering A,1991,140:419-434. |
| [5] | T. Czerwiec;H. Michel;E. Bergmann .Low-pressure, high-density plasma nitriding: mechanisms, technology and results[J].Surface & Coatings Technology,1998(1/3):182-190. |
| [6] | Goncharenko IM.;Grigoriev SV.;Lopatin IV.;Koval NN.;Schanin PM. Tukhfatullin AA.;Ivanov YF.;Strumilova NV. .Surface modification of steels by complex diffusion saturation in low pressure arc discharge[J].Surface & Coatings Technology,2003(0):419-423. |
| [7] | 王亮,许晓磊,许彬,于志伟,黑祖昆.奥氏体不锈钢低温渗氮层的组织与耐磨性[J].摩擦学学报,2000(01):67-69. |
| [8] | 王亮,许彬,于志伟,许晓磊,黑祖昆.低压等离子体弧源离子渗氮[J].金属热处理,1999(09):33. |
| [9] | Xia Y;Hu J;Zhou F et al.Friction and wear behavior of plasma nitrided ICr18Ni9Ti austenitic stainless steel under lubrication condition[J].Material Science and Engineering,2005,A 402:135-141. |
| [10] | Feugeas J.;Gomez B.;Craievich A. .Ion nitriding of stainless steels. Real time surface characterization by synchrotron X-ray diffraction[J].Surface & Coatings Technology,2002(2/3):167-175. |
| [11] | C.E. Foerster;J.F.P. Souza;C.A. Silva;M. Ueda;N.K. Kuromoto;F.C. Serbena;S.L.R. Silva;C.M. Lepienski .Effect of cathodic hydrogenation on the mechanical properties of AISI 304 stainless steel nitrided by ion implantation, glow discharge and plasma immersion ion implantation[J].Nuclear Instruments and Methods in Physics Research, Section B. Beam Interactions with Materials and Atoms,2007(0):727-731. |
| [12] | Renevier N;Michel H;Collignon P et al.New trends on nitriding in low pressure arc discharges studied by optical emission spectroscopy[J].Surface and Coatings Technology,1996,86-87:285-291. |
| [13] | Wang Liang;Xu Xiaolei;Xu Jiujum;Shi Yaqin .Characteristics of low pressure plasma arc source ion nitrided layer on austenitic stainless steel at low temperature[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2001(1):11-16. |
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